Exploring the Layers of Earth's Atmosphere

What is the primary function of Earth's atmosphere?

• To create weather patterns

• To protect Earth from solar and cosmic radiation

• To provide oxygen for breathing

• To support satellite communication

Which layer of the atmosphere is closest to Earth?

• Stratosphere

• Troposphere

• Exosphere

• Mesosphere

At what altitude does the troposphere extend to?

• About 12 kilometers

• About 50 kilometers

• About 35 kilometers

• About 700 kilometers

Where does the ozone layer reside?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

Why does temperature increase with altitude in the stratosphere?

• Due to the presence of water vapor

• Due to the reflection of solar radiation by clouds

• Because of heat emitted from the Earth's surface

• Because of the ozone layer absorbing UV radiation

What causes meteors to burn up when entering Earth's atmosphere?

• Lack of oxygen in the exosphere

• Solar radiation in the thermosphere

• The ozone layer

• Friction in the mesosphere

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which layer of the atmosphere contains the auroras?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

What is the primary gas found in the thermosphere?

• Helium

• Carbon dioxide

• Oxygen

• Nitrogen

What process helps the troposphere to have a gradually decreasing temperature with altitude?

• Reflection of solar radiation

• Conduction and convection

• Radiative emission

• Absorption of UV radiation

Why is the exosphere extremely hot during the day and colder at night?

• Because of its high altitude

• Because of the absence of the ozone layer

• Due to the thin air not transferring much heat

• Due to solar radiation